With a precision-engineered matrix that contains whey protein concentrates, hydrolysates, and isolates, as well as egg albumin and micellar casein, MusclePharm Combat Powder is the ultimate timed-released protein super-food. Because each of the distinct protein sources found within Combat digest at varying rates, amino acids are not only flooded into the bloodstream within minutes after consumption, but will continuously be "trickle fed" to your muscles for up to 8 hours afterward.*